Plasma and Electric Arc Process Heating Patents
Leadership is thin. the top five assignees together hold 21.4% of all 1,710 records in scope, and the leader alone sits well ahead of fifth place — concentration without a dominant monopoly. Filings climbed from 23 in 2017 to a peak of 90 in 2023, then eased in the visible data. Read the last two years as incomplete rather than declining: publication typically lags filing by around 18 months, so 2025 and 2026 will fill in as more records publish. The 2021-to-2024 window, which is complete, shows genuine growth of 33%.
- 1HYPERTHERM INC6.7%
- 2MONOLITH MATERIALS INC5.0%
- 3PLASCOENERGY IP HLDG SL3.9%
- 4LYTEN INC3.1%
- 5BATTELLE MEMORIAL INST2.8%
See the full plasma and electric arc process heating analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions about this landscape
Who are the leading patent holders in plasma and electric arc process heating?
The assignee ranking covers 100 companies, with the leader holding 114 records against 48 for the fifth-place company and 33 for tenth place. That gap shows a clear leader, but the top five together account for only 21.4% of all 1,710 records in scope, so no single company controls the field. Names appearing at the top of recent rankings include equipment makers and materials companies working across plasma torch design, gasification and coating applications. A freedom-to-operate check should look closely at the ranked leaders' claim scope rather than assuming the field is uncontested.
Is patent filing in this area growing or slowing down?
Filing grew from 24 records in 2021 to 32 in 2024, a 33% increase over that complete-data span, and the peak year so far is 2023 at 90 records. The apparent decline visible in 2025 and 2026 is an artefact of publication lag — publication typically trails filing by roughly 18 months, so those years are still filling in. Treat any year within the last 18-24 months as understated rather than as evidence of a slowdown.
Which patent classes matter most in plasma torch and electric arc heating?
H05H, covering plasma and particle accelerators, touches 29.8% of the 1,710 records in scope, making it the single largest classification. B23K (welding, soldering and brazing) follows at 17.7%, with F23G (incinerators and waste burning) and C10J (gasification of fuels) each near 13%. Because records can carry multiple IPC classes, these figures overlap and should be read as indicators of where claim density concentrates, not as mutually exclusive market segments.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Plasma and Electric Arc Process Heating covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.